Amos henry undeewood



(No Model.) A. H. UNDERWOOD.

FOLDING SEAT 0R CHAIR. N0. 372,881. Patented Nov. 8., 1887.5"-

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ATTORNEYS.

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UNITED STATES PATENT OFFICE.

AMOS HENRY UNDERWOOD, OF AUBURN, NEW YORK.

FOLDING SEAT OR CHAIR.

SPECIFICATION forming part of Letters Patent No. 372,881, dated November 8, 1887.

Application filed March 15, 1887. Serial No.231,010.

To aZZ whom it may concern:

, Be it known that I, AMos HENRY UNDER- WOOD, of Auburn, in the county of Cayuga and State of New York, have invented a new and useful Improvement in Folding Seats or Chairs, of which the following is a full, clear, and exact description.

The object of my invention is to provide sewing-machines or other such small tables with a light and strong seat or chair permanently connected to the same, easily adjusted for use, and capable of being folded beneath the table when not needed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure l is a side elevation of the chair and part of the table-legs, showing the two positions of the chair; and Fig. 2 is a rear elevation of the same, with parts broken awayand in section.

My invention consists in the novel construction and arrangement of parts of the folding seat or chair, as hereinafter particularly described, and pointed out in the claims.

A rod, (1, connects the front legs, I), of the table, being secured in suitable openings in the legs, as shown in Fig. l, or constructed to receive screw-bolts a, passed through said legs,

or pins a, projecting therefrom, as shown in Fig. 2. Upon said rod is loosely fitted a pipecoupling, 0, constructed with an internallythreaded offset, a, and at each side of said coupling are collars d, of the same size, fitting snugly on said rod, or loosely fitted thereon and adapted to be secured by set-screws or any other suitable device. The leg e, constructed of a piece of half-inch gas-pipe curved to the arc of a circle, is threaded exteriorly at each extremity, and has a short parallel slot, 6, in its concave and convex side. A rod, f, having the same curvature as the leg e, telescopes in said leg, and a guide-pin, f, passed through the lower part of said rod, ranges in said slots e. The leg h is constructed of a stem provided with a dog, 2', adapted to engage with notches g near the upper end of the rod f, branches i, and a base, i. To said leg is pivoted at j an interiorly-threaded clamp, j, into which and the coupling a the upper and lower (No model.)

extremities of the leg 6 are respectively fitted. Upon the upper end of the rod f is fitted a bar, k, and a plate, Z, constructed with a bearing, m, and a segmental flange, n, provided with a curved slot,h,is adapted to turn upon the ends of said rod. A link, 0, is tightly pivoted upon said rod, and to a threaded pin, 0, seated in its lower extremity and traversing the slot in the flange, is journaled a lever, p. The seat 8 revolves upon a projection, s, rising from the center of the plate Z, and is secured thereto in any suitable manner.

The entire chair is pivoted by the coupling 0 upon the rod which connects the table-legs, and when desired for use may be drawn outward from beneath the table and its leg h -extended to rest upon the floor, as in Fig. 1. The seat 8 is adjusted at the height desired by raising or lowering the rod f, and the dog carried by the leg h is engaged with the proper notch on said rod. The seat is placed at an angle by tilting it on the rod 70, and by turning the lever 12 upon the thread of the pin 0 in the slot of the flange said flange and the link 0 are firmly bound together, thus preventing the seat from tipping. The weight of the operator upon the seat causes the dog on the leg h to press tightly in the notch on the rod f and prevents the seat from falling. Any tendency of the rod f to twist in its passage up and down the leg e is prevented by thepin f moving in the slots in said leg.

The chair is folded away, when not needed, by raising the leg h, disengaging its dog from the rod f, loosening the bond between the flange and link, and pushing said chair inward beneath the table, as shown by dotted lines in Fig. l.

The provision of the coupling and collars on the rod or enables the chair to be moved to either side of the table, and it may be confined in such location by set-screws or any other suitable device applied to said collars.

Myinvention is specially applicable to sew-' ing-machine or type-writing-machine tables; but it will be apparent that with slight modification it may be applied to other small tables and to counters of-stores, 850.

Having thus described my invention, what I IOO l. Afolding and adjustable chair for sewing and type-writing machines, consisting of a support pivoted to a rod connecting the table-legs, a rod telescoping in said support, an adjustable support j on rnaled to said pivoted support and engaging said rod, a bar fitted to the top of said rod and turning in bearings beneath a plate which supports the chair-seat, a segmental flange with a curved slot depending from said plate, and a link and a hand-lever which connect and lock the flange and bar together, all constructed substantially as shown and described.

2. In an adjustable chair for sewing and type-writing machines, a curved leg having slots in its sides, a rod provided with notches near its upper end and a guide-pin intersecting its lower extremity, said rod telescoping in said leg and sustaining a bar upon which the supportingplate of the chairseat turns, and an adjustable leg carrying a dog at its upper end and pivoted to a clamp on the curved leg, in combination with a coupling fitted upon a rod connecting the legs of the table, substantially as described and shown.

3. In a folding chair for sewing and typewriting machines, the combination of the leg h, provided With the dog i,with the rodf, hav' ing the notches gand guide-pin f, and sliding in the leg 6, having the slots 0', and supporting the plate Z, whereby the chair-seat may be ad justed at any desired height, substantially as set forth.

4. In a folding chair for sewing and typewriting machines, the curved leg 0, the rod f, telescoping in said leg, the bar k, fitted to the top of said rod, the plate I), having the segmental slotted flange a and bearing at depending therefroin,by which said plate is supported on said bar, and the seat s, pivoted upon said plate, in combination with the link 0, connected to said bar, the pin 0, seated in said link, and the hand-lever p, fitted upon said pin, whereby said seat may be disposed and looked in any desired position for use or for folding beneath the table, as set forth.

AMOS HENRY UNDERWOOD.

Witnesses:

BYRON B. DENISON, KILBORN WARD. 

